Friedreich's ataxia (FRDA) is an autosomal recessive neurodegenerative diso
rder causing progressive ataxia and dysarthria. We report two sisters who h
ad breast cancer aged 39 years and 42 years and who both developed a late o
nset form of FRDA with onset of neurological symptoms in their thirties. We
discuss whether there may be an association between the late onset form of
FRDA and malignancy. (C) 2001 Harcourt Publishers Ltd.